<template>
  <div id="login">
    <div class="login_box">
        <!-- 图标的左右耳 -->
        <!-- <div class="left_ear"></div>
        <div class="right_ear"></div> -->
        <div class="avatar_box">
          <img src="../assets/imges/Avatar.jpeg" >
        </div>
        <el-form :model="loginForm" :rules="loginFormRules" ref="loginFormRef"  label-width="0px" class="login_form">
          <!-- 用户名 -->
          <el-form-item prop="username">
            <el-input v-model="loginForm.username" prefix-icon="iconfont icon-user" placeholder="请你输入邮箱账号"></el-input>
          </el-form-item>
          <!-- 密码 -->
          <el-form-item prop="password">
            <el-input v-model="loginForm.password" prefix-icon="iconfont icon-3702mima" placeholder="请输入密码" type="password"></el-input>
          </el-form-item>
          <!-- 按钮区域 -->
          <el-form-item class="btns">
            <el-button type="primary" @click="login">登录</el-button>
            <el-button type="info" @click="resetLoginForm">重置</el-button>
          </el-form-item>
        </el-form>
    </div>
  </div>
</template>

<script>
  export default{
    data() {
      return {
        // 这是登录表单的绑定对象
        loginForm: {
            username:'',
            password:''
        },
        loginFormRules:{
          // 用户名的验证规则
          username:[
             { required: true, message: '请输入用户名称', trigger: 'blur' },
             { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
          ],
          // 验证密码的合法性
          password:[
            { required: true, message: '请输入密码', trigger: 'blur' },
            { min: 6, max: 20, message: '长度在 6 到 20 个字符', trigger: 'blur' }
          ]
        }
      }
    },
    methods:{
      resetLoginForm: function(){
        this.$refs.loginFormRef.resetFields();
      },
      // 登录校验
      login: function(){
        this.$refs.loginFormRef.validate( async(valid)=>{
          if(!valid){
            return;
          }
          else{
            const {data : res} = await this.$http.post('login', this.loginForm);
            if(res.meta.status !== 200){
              return this.$message.error('登录失败')
            }else{
              this.$message.success('登录成功');
              // console.log(res.data.token);
              window.sessionStorage.setItem('token',res.data.token);
              // 跳转到主页
              this.$router.push('/home');
            }
          }
        })
      }
    }
  }

</script>

<style lang="less" scoped="scoped">
   #login{
     background-color: #2b4b6b;
     height: 100%;
     .login_box{
       width: 450px;
       height: 300px;
       background-color: #fff;
       border-radius: 3px;
       position: absolute;
       top: 50%;
       left: 50%;
       transform: translate(-50%,-50%);
       // 左耳,右耳
       .left_ear {
         width: 50px;
         height: 50px;
         background-color: #fff;
         border-radius: 50%;
         position: fixed;
         top: -70px;
         left: 130px;
         z-index: 99999999;
       }
       .right_ear {
         width: 50px;
         height: 50px;
         background-color: #fff;
         border-radius: 25px;
         position: fixed;
         top: -70px;
         left: 260px;
         z-index: 99999999;
       }

       .avatar_box{
         width: 130px;
         height: 130px;
         border: 1px solid #eee;
         border-radius: 50%;
         padding: 10px;
         box-shadow: 0 0 10px #ddd;
         position: absolute;
         left: 50%;
         transform: translate(-50%,-50%);
         background-color: #fff;
         img{
           width: 100%;
           height: 100%;
           border-radius: 50%;
         }
       }
     }
   }
   .login_form{
     position: absolute;
     bottom: 0;
     width: 100%;
     padding: 0 20px;
     box-sizing: border-box;
   }
   .btns{
     display: flex;
     justify-content: flex-end;
   }
</style>
